<template>
  <div class="login_container">
    <div class="login_box">
      <!-- avatar头像区域 -->
      <div class="avatar_box">
        <img src="../assets/images/avatar.jpg" alt />
      </div>
      <!-- 登录表单区域 -->
      <!--  -->
      <el-form
        ref="loginFormRef"
        :model="loginForm"
        :rules="loginFormRules"
        label-width="0px"
        class="login_form"
      >
        <!-- 用户名 -->
        <el-form-item prop="username">
          <el-input maxlength="10" v-model="loginForm.username" prefix-icon="iconfont icon-user"></el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item prop="password">
          <el-input
            maxlength="15"
            v-model="loginForm.password"
            prefix-icon="iconfont icon-3702mima"
            type="password"
          ></el-input>
        </el-form-item>
        <!-- 按钮区域 -->
        <el-form-item class="btns">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button type="info" @click="resetLoginForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  name: 'login',
  data() {
    return {
      loginForm: {
        username: 'admin',
        password: '123456'
      }, // 这是表单的验证规则对象
      loginFormRules: {
        // 验证用户名是否合法
        username: [{ required: true, message: '请输入登录名称', trigger: 'blur' }, { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }],
        // 验证密码是否合法
        password: [{ required: true, message: '请输入登录密码', trigger: 'blur' }, { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }]
      }
    }
  },
  methods: {
    login() {
      this.$refs.loginFormRef.validate(async valid => {
        if (!valid) return
        const { data: res } = await this.$http.post('login', this.loginForm)
        if (res.meta.status !== 200) return this.$message.error('登录失败！')
        this.$message.success('登录成功')
        window.sessionStorage.setItem('token', res.data.token)
        this.$router.push('/home')
      })
    },
    resetLoginForm() {}
  }
}
</script>

<style lang="less" scoped>
.login_container {
  background-color: #a548f3;
  height: 100%;
  .login_box {
    width: 450px;
    height: 300px;
    background-color: #fff;
    border-radius: 3px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    .avatar_box {
      height: 130px;
      width: 130px;
      border: 1px solid #eee;
      border-radius: 50%;
      padding: 4px;
      box-shadow: 0 0 10px #ddd;
      position: absolute;
      left: 50%;
      transform: translate(-50%, -50%);
      background-color: #fff;
      img {
        width: 100%;
        height: 100%;
        border-radius: 50%;
        background-color: #eee;
      }
    }
  }
}
.login_form {
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
}
.btns {
  display: flex;
  justify-content: flex-end;
}
</style>
